baber/WOPTO huggingface dataset:
Patent GB-1130194-A (GB)
Title: Device for detecting the presence in, or the passage through, a given place of metallic objects, more particularly vehicles
IPC: G01V3/10
Filed: 1966-10-12
Abstract: 1,130,194. Detecting the presence of a metal body. COMPAGNIE GENERALE D'ELECTRONIQUE INDUSTRIELLE LEPAUTE. Oct. 12, 1966 [Oct. 12, 1965], No.45699/66. Heading G1N. [Also in Division G4] Apparatus for detecting the presence of a metal object in a given place or its passage therethrough comprises an A. C. bridge circuit incorporating an electromagnetic detecting loop 46 and a reference coil 43 and is characterised by having one or more insulated conductors (16), whose shape and dimensions are such that they undergo the same capacitance variations in relation to the surrounding medium as the detecting loop, connected to that arm of the bridge which contains the reference coil to provide compensation for temperature changes and penetration of moisture. Connection between the detecting loop and the bridge circiut may be through a two conductor screened cable (14), Fig. 1 (not shown), or a three conductor cable. As shown in Fig. 2, the bridge E is energized by an oscillator D and any out of balance signal is freed from parasitic r.f. by a capicitor 47 and passes through an amplifier F, having a negative feedback loop incorporating a variable rejector circuit, to a rectifier circuit, (diodes 67, 68). A switch 88 enables either the "passage" or the "presence" mode to be selected. Connection between c and d selects the "passage" mode; limiting diodes 74, 75 convert the varying signal (K) due to the irregular shape of the object (J) into a uniform square pulse (M) which is then differentiated by a capacitor 81, (N), amplified and passed to a Schmitt trigger circuit to control a relay 102. Connection between c and e selects the "presence" mode in which the rectified signal is fed directly to the Schmitt trigger circuit. A tuning indicator 78 is provided.
Patent GB-1450891-A (GB)
Title: Method of drying photosensitive sheets for the production of printing plates
IPC: G03F7/00
Filed: 1973-10-01
Abstract: 1450891 Drying apparatus BASF AG 1 Oct 1973 [2 Oct 1972] 45726/73 Heading F4G [Also in Division G2] A photopolymer printing plate -is imagewise exposed, washed, hardened by post-exposure and dried using a stream of hot air; the postexposure taking place before or during drying to harden the plate and thus allow high drying temperatures to be used-typically 110 C. As shown, a plate 12 is conveyed by magnetic rollers 17 into a chamber 7 having an inlet 13 and outlet 14 for the hot air. A second chamber 8 separated from chamber 7 by a glass plate 10 contains fluorescent post-exposure lamps 9 and has an inlet 15 and outlet 16 for cold air to cool the lamps.
Patent GB-1128027-A (GB)
Title: Lubricated thermoplastic polymers
IPC: C08L57/00
Filed: 1965-10-28
Abstract: 1,128,027. Vinyl aromatic polymer/liquid polybutene compositions. COSDEN OIL & CHEMICAL CO. 28 Oct., 1965 [29 Oct., 1964], No. 45745/65. Headings C3G and C3P. A composition comprises a homogeneous blend of a thermoplastic solid vinyl aromatic polymer and a minor amount, e.g. 0À1-6%, of a liquid polybutene of viscosity 40-11,200 S.S.U. at 100‹ F. and of 112-600 molecular weight as lubricant. The polybutene may be hydrogenated and water-white, and may be polyisobutylene. The vinyl aromatic polymer may be polystyrene or a high impact polystyrene, e.g. a graft polymer of styrene monomer and a rubber polymer, e.g. polybutadiene. The composition may be formed by polymerizing in aqueous suspension (A) a mixture of styrene monomer, polyisobutylene, calcium chloride, trisodium phosphate, sodium octyl sulphate, benzoyl peroxide and lecithin; or (B) a mixture of styrene monomer, G.R.S. rubber, lauryl mercaptan, polyisobutylene, benzoyl peroxide, trisodium phosphate, calcium chloride, polyvinyl alchohol and a salt of a C 6-8  fatty acid; or by polymerizing in bulk a mixture of styrene monomer, natural rubber, polyisobutylene, lauryl mercaptan and benzoyl peroxide.
Patent GB-1523716-A (GB)
Title: Fishing lures
IPC: A01K85/16
Filed: 1975-10-21
Abstract: 1523716 Fishing lures D E J BEER, P L THURSTON and B N BROADWAY 21 Oct 1975 [23 Oct 1974 14 Dec 1974] 45767/74 and 54143/74 Heading A1A A fishing lure comprises a hollow body portion 11, through which line (not shown) is threaded and attached to a hook 23 replaceably inserted into an opening 22; and a flexible planar tail portion 12 formed by a web 14 reinforced by ribs 13a, 13b and having at its free end a generally planar fin 15 bearing vanes 17, 18 projecting in opposite directions from the tail portion 12  and asymmetrically disposed about the general plane of the fin 15, so that the fin 15 performs oscillating, twisting movements when drawn through water. There is no reinforcing web between the lower vane 18 and the fin 15, which leads to high sensitivity to water currents and good flexibility.
Patent GB-1093044-A (GB)
Title: Filter apparatus
IPC: B01D29/00
Filed: 1964-11-11
Abstract: 1,093,044. Travelling band filter. AJEM LABORATORIES, Inc. Nov. 11, 1964 [Feb. 7, 1964], No. 46012/64. Heading B1D. A travelling band liquid filter comprises a tank 20 containing a suction box 22 having an open face over which a band of filter medium 24 and web 30. Structure 47 comendless belt support structure 47 which travels flush with the open face to support the medium. In Fig. 1 medium 24 is fed from a supply roll 26 and engaged by an endless support web 30 (entrained round rolls 42, 34, 37, 38, 40), which carries medium 24 over box 22. A motor 44 is intermittently actuated, manually in response to an alarm 74 or automatically when the pressure in box 22 falls, to drive web 30 and structure 47, and dirty medium 24 is ejected through port 43. Adjustable tensioning roll 34 may have a ribbed surface, and bowed surfaces 32 assist smooth contacting of medium 24 and web 30. Structure 47 comprises parallel bars carried between two chains (Figs. 2, 3, 7, 8, not shown). Tank 20 may have a baffle (70) to reduce turbulence. In Figs. 9, 10 (not shown) the outlet pump (134) draws liquid from the suction box or from a downstream reservoir tank. The pump is able to deliver filtrate into the reservoir, which has an overflow back into the dirty liquid tank. An additional feed of clean filtrate from the reservoir to a slotted pipe (144) in the suction box wets the underside of the medium to prevent air being sucked therethrough. Liquid or gas may clean web 30 after medium 24 has been discharged therefrom.
Patent GB-1422024-A (GB)
Title: Coating agent curable by ionising radiation
IPC: E06B3/94
Filed: 1973-10-02
Abstract: 1422024 Coatings BASF FARBEN & FASERN AG 2 Oct 1973 [9 Oct 1972] 46014/73 Heading B2E [Also in Division C3] Substrates are coated with a coating agent curable by ionising radiation contains, in admixture, component A which comprises an olefinically unsaturated compound containing at least one urethane group and component B which comprises a further olefinically unsatur ated compound, component A being the reaction product of (a) a compound of the formula where n is 1 or 2, R is a straight chain, branched chain or cyclic hydrocarbon residue of valency n, R 1  is H, methyl or a radical of the formula where R 3  is a monovalent hydroxy-substituted hydrocarbon group, and R 2  is H or methyl and (b) a compound containing at least one isocyanate group. Component B is preferably an ester of acrylic or methacrylic aoid with a monohydric or polyhydric alcohol, e.g. 1, 4- butanediol diacrylate and 2-hydroxyethyl acrylate; other monomers disclosed are vinyl aromatic compounds, vinyl heterocyclic amines and amides, dialkyl fumarates, (meth)acrylamide and methylol ether derivatives thereof, and unsaturated carboxylic acids. The coating agent may include additives such as pigments, extenders, dyestuffs, flow promoters, antifoam agents, plastioisers, solvents, polymerisation inhibitors and matting agents. Curing may be effected with α-rays, x-rays, γ-rays, radiation from nuclear reactors or, preferably, electron beams. Coatings may be applied to such substrates as iron, steel, aluminium, glass, ceramic, porcelain, wood, paper and plastics using methods such as spraying, dipping, flood-coating, roller-coating, doctor blade-coating or pouring.
Patent GB-1287566-A (GB)
Title: Phosphorus containing polymers
Inventor: ALLUM KEITH GEORGE
IPC: C08F30/02
Filed: 1968-09-30
Abstract: 1287566 Polymers of unsaturated phosphines BRITISH PETROLEUM CO Ltd 18 Nov 1969 [30 Sept 1968] 46214/68 Heading C3P [Also in Division C5] A polymer, suitable for use as a catalyst support material, is obtained by homo- or copolymerizing an unsaturated phosphine of the formula where Ph is a phenyl group, n is an integer #1 and R and R<SP>1</SP> are hydrogen or C 1-10  alkyl. In the example allyl diphenylphosphine is copolymerized with styrene in carbon tetrachloride using benzoyl peroxide to form a liquid product.
Patent GB-1107365-A (GB)
Title: Improvements relating to electrical sawtooth waveform generators
Inventor: SCOLES GRAHAM JOHN
IPC: H03K4/12
Filed: 1963-11-22
Abstract: 1,107,365. Sawtooth circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 27 Oct., 1964 [22 Nov., 1963], No. 46257/63. Heading H3P. [Also in Division H2] A sawtooth generator comprises a capacitor C1 charged from a D.C. source and discharged via a rectifier D2 during alternate half-cycles of an alternating voltage, a further rectifier D1 being arranged to clamp the potential across the capacitor during the discharging half-cycle. A further alternating voltage fed via transformer T2 and phase-displaced relative to that fed via T1 may be included to allow the duration of the linear sweep of the sawtooth to be greater than one half-cycle of the alternating input. The sweep duration is adjustable by relative variation of resistors R1, R3 or of the voltages at A and C. The charging current via R2 may be linearized by a known bootstrap circuit (Fig. 3, not shown). Fig. 6 (not shown) relates to six circuits of the type shown in Fig. 4 arranged to generate a six-phase sawtooth wave suitable for triggering the six main rectifiers of a three-phase grid-controlled rectifier system. Strobing circuits may be interposed between the sawtooth circuits and the rectifiers so that the firing angle of all rectifiers may be simultaneously adjustable.
Patent GB-1202087-A (GB)
Title: Automatic central buffer coupling for rail vehicles
Inventor: BIEBACH DIETER
IPC: B61G5/08
Filed: 1967-10-11
Abstract: 1,202,087. Train pipe couplings. GERMANY, MINSTRY OF TRANSPORT. 11 Oct., 1967, No. 46475/67. Heading B7T. A train pipe service coupling comprises a guide frame 21 supporting a train pipe 20 by means of a fastening 23 and a contact housing 19 which may be slid along the pipe 20 by means of a forked lever (not shown) moving a pin 18 connected to the housing, the housing automatically taking with it in its sliding movement a mouthpiece 25 and sleeve 26 within the pipe. The sleeve 26 mounts diametrically opposed pins 35, Fig. 3 (not shown), which releasably connect to the housing 19 in bayonet joint fashion by engaging grooves 36, 37 in the housing, and the sleeve and housing are together similarly bayonet joint connected to the tube 20 by a spring 30 extending from the tube and engaging first in a circumferential groove 38 in the sleeve 26 and then sliding in a groove 29 connecting with 38. (For Figures see next page.)
Patent GB-1162866-A (GB)
Title: Improvements in Levelling Supporting Devices
Inventor: MESSER HANS JOHN
IPC: F16M7/00
Filed: 1967-10-11
Abstract: 1,162,866. Levelling supporting devices. H. J. MESSER. 11 Oct., 1967, No. 46488/67. Heading B8J. [Also in Division F2] Fig. 1 shows a levelling supporting jack device comprising a base member 13, disposed on a floor plate 12, and a co-operating body member 14 screw threaded into apparatus 11 to be levelled and supported. The surface of the base member engaging the floor has a surface finish of between 100 and 200 microinches. The base member 13 and the body member 14 engage each other for relative transverse arcuate sliding movement by means of respective mating spherical surfaces 13a, 14a of the same radius of curvature and a surface finish of less than 32 micro-inches. The height of the apparatus can be adjusted by rotating the body member 14 using a part 18 in the form of a hexagon nut. The jack parts are clamped after adjustment by a nut 23 on an anchoring bolt 19 attached to the floor. Ample clearance for the bolt 19 allows transverse sliding of the whole jack. Fig. 2 (not shown) illustrates an embodiment where the body member 14 is threaded into a part (15) having a flat face (15a) to engage a flat surface (11a) on the underside of the apparatus 11. The embodiment shown in Fig. 4 is a levelling supporting device comprising the parts 13 and 14 only and does not provide vertical adjustment.
Patent GB-1325144-A (GB)
Title: Process for the production of tris-hydroxymethyl-phosphine
IPC: C07F9/50
Filed: 1971-10-06
Abstract: 1325144 Preparing tris(hydroxymethyl)phosphine AMERICAN CYANAMID CO 6 Oct 1971 [27 Nov 1970] 46535/71 Heading C2P Tris(hydroxymethyl)phosphine is obtained by reacting phosphine with formaldehyde in a C 1 -C 3  saturated aliphatic alcohol at 60‹ to 110‹ C. and at a pressure of 300 to 800 p.s.i.g. The alcohol should preferably be anhydrous and the preferred alcohol is methanol. The formaldehyde may be used in the form of gaseous formaldehyde, paraformaldehyde, trioxane or mixtures thereof, and substantially 3 moles of formaldehyde are preferably used per mol. of phosphine. In an example the reaction is carried out at 75-90‹ C. and 450-475 p.s.i.g. in an autoclave which has been purged with nitrogen, the phosphine being passed into a heated mixture of paraformaldehyde and methanol in the autoclave.
Patent GB-1485460-A (GB)
Title: Hot-gas reciprocating engine
IPC: F02G1/055
Filed: 1974-10-28
Abstract: 1485460 Hot gas engines PHILIPS GLOEILAMPENFABRIEKEN NV 28 Oct 1974 [31 Oct 1973] 46557/74 Heading F1S In a hot gas engine comprising heater pipes 7 which are situated inside a heat pipe 11, at at least one end the heater pipes are connected to a cylinder unit 1 or a regenerator unit 8 by a tubular connection member or members 16, 17 which or each of which extends in a direction extending transversely of the longitudinal axis of the respective unit and which or each of which passes through a wall of the heat pipe in a manner such as to allow relative movement between the latter wall and the tubular connection member or members in a direction parallel to the longitudinal axis or axes of the connection member or members, flexible sealing means 18 being provided between the latter member or members and the wall of the heat pipe to permit such relative movement. The application of the invention to multi-cylinder double-acting hot gas engines is described. In a modification (not shown), the heater pipes open at both ends into a manifold and each manifold is connected with a cylinder or regenerator respectively by way of only one tubular connection member. The engine may be of V-type in which the cylinders and regenerator/ cooler units are arranged at an angle to each other.
Patent GB-1237555-A (GB)
Title: Cutting device
Inventor: MAITLAND NORMAN ARTHUR
IPC: B26D1/20
Filed: 1968-10-02
Abstract: 1,237,555. Cutting devices. N. A. MAITLAND. 2 Oct., 1968, No. 46784/68, Heading B4B. A cutting device comprises a pair of cutting elements 13, 14 connected by a support 23 and a feed-table 11 with a raised portion 21 for lifting sheet 10 being cut on one side of the line of cut relative to the material on the other side without deflecting it transversely, the support 23 passing between the material on the feed table at one side of the cut and the raised portion 21. The elements 13, 14 and pinch rollers 17 for drawing the sheet 10 through the device are electrically driven, though the upper roller 17 may be retracted and the sheet 10 guided by hand.
Patent GB-1049997-A (GB)
Title: Polychloroprene for surface coating compositions
Inventor: HOEHNE KLAUS
IPC: C08L11/00
Filed: 1965-11-04
Abstract: Masticated storage stable polychloroprene comprises (a) a polychloroprene of medium crystallization tendency having a Defo hardness at 80 DEG C of 250 and a Mooney viscosity of 30 to 45, (b) a polychloroprene of strong crystallization tendency having a Defo hardness at 80 DEG C of 900 and a Mooney viscosity of 75 to 85, (c) 1 to 10% magnesium oxide and (d) 1 to 10% of zinc oxide both based on the weight of the polychloroprene mixture.  The ratio of the medium to strong crystallization tendency is preferably 1:3 to 3:1.  The mixture may be used as a coating composition also containing solvent, pigment and polyfunctional isocyanates.
Patent GB-972103-A (GB)
Title: Improved driver circuit for magnetic recording heads
IPC: G11B20/10
Filed: 1962-12-11
Abstract: 972,103. Switching magnetic beads, NRZ recording. AMPEX CORPORATION. Dec. 11, 1962 (Jan. 22, 1962], No. 46802/62. Heading G5R. [Also in Division H3] Switching transistors 40, 41, alternately rendered conducting by the state of a flip-flop 10, 11 feed an NRZ recording current in alternate directions through a head winding 62 via paths 44, 45, 58, 60, 41, 31 or 44, 47, 60, 58, 40, 31 as 41 or 40 respectively are conducting. A positive trigger pulse 35 inverts the flipflop whatever its previous state, while desired states may be achieved or confirmed by applying positive SET or RESET pulses to transistors 70, 71, these latter pulses having no effect if the flipflop is already in the desired state. When 10 conducts, 40 is cut off and a steady current flows through inductor 50. On changeover, this switches the base of 40 rapidly to turn 40 on and the inductance of the winding 62 and the size of load 47 are so related to the other circuit values as to optimise rapid changeovers in the recorded pulses. At the same time, capacitor 30 speeds the cut-off of 41. A switch 46, feeding the collectors of 40, 41 may be opened to stop recording, while the flipflop continues running in accordance with the TRIGGER input.
Patent GB-1081720-A (GB)
Title: Speech recognition apparatus
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: G10L25/90
Filed: 1965-11-05
Abstract: 1,081,720. Speech recognition. STANDARD TELEPHONES & CABLES Ltd. Nov. 5, 1965, No. 46984/65. Addition to 1,012,765. Heading G4R. Speech recognition apparatus includes means for generating a non-linear pulse train time scale when a reversal of polarity is detected in the speech waveform and means for counting the number of timing pulses between said reversal and the next reversal, the initial time constant of the time scale being controlled by a voltage proportional to the fundamental frequency of the speech waveform. The pulses of the pulse train get progressively further apart. A negative input pulse of amplitude proportional to the fundamental frequency of the speech waveform charges a first capacitor, which then starts to discharge. At the same time, a second capacitor starts to charge negatively until the voltage across it is sufficiently negative to cause a first transistor to conduct. The first transistor conducts progressively more strongly due to positive feedback via a second transistor until it is saturated when it discharges the second capacitor through grid drain until the second capacitor cannot maintain the first transistor conducting when the latter cuts-off. While conducting, the first transistor produced the first clock pulse. The second capacitor is now charged from the first but not so fast as before due to loss of charge from the latter in the meantime. The second capacitor in due course causes the first transistor to conduct again to produce the second clock pulse, and so on. The series of clock pulses terminates when a further negative input pulse arrives to produce a new clock pulse series. The further input pulse may be preceded by a positive resetting pulse applied to the second capacitor.
Patent GB-1395490-A (GB)
Title: Device for turning conveyed articles
IPC: B65G47/244
Filed: 1971-10-08
Abstract: 1395490 Rotary conveyers J A MARTIN and W J M R E OWEN [trading as OMBI SYSTEMS] 8 Jan 1973 [8 Oct 1971] 47084/71 Heading B8A Bags or boxes are rotated on a conveyer table 21 by the action of a rectangular shaped (in plan view) rotating head 1. The latter has pivotable flaps 4 mounted on three of its sides which are pivoted downwards to retain a bag in correct position during turning. As a bag is conveyed into position on the table, it obturates a photo-cell in a control circuit (not shown). A stepping switch in the circuit initiates lowering of the flaps, and then rotation of the head 1, by an hydraulic motor 3, through 180 degrees. A metal lug 18, on a switch-plate 15 which turns with the head 1, co-operates with a proximity switch 19 to indicate that rotational movement is complete. The control circuit can effect a series of operations on successive bags so as to arrange them in groups suitable for stacking (Fig. 4, not shown). Certain stacks may be passed through the device without being turned. The head 1 may be pivotally mounted at a corner for rotation through 90 degrees instead of 180 degrees. Specification 1,393,367 is referred to.
Patent GB-1519594-A (GB)
Title: Mass colouration of polyesters
IPC: C08K5/32
Filed: 1974-10-31
Abstract: 1519594 Colouring polyesters IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Oct 1975 [31 Oct 1974] 47113/74 Heading C3R Polyesters, e.g. polyethylene terephthalate, are coloured using a monoazo dyestuff of the formula:- wherein X is hydrogen or methyl, Y and Z are chlorine or bromide and R is C1-4 alkyl.
Patent GB-1206608-A (GB)
Title: Hydraulic accumulator control system
IPC: F15B1/02
Filed: 1967-10-17
Abstract: 1,206,608. Hydraulic accumulators. G. L. REXROTH G.m.b.H. Oct.17, 1967 [Oct.18, 1966], No.47140/67. Heading F1P. The cylinder space beneath the compressed air loaded piston of a hydraulic accumulator 8 is charged by a pump 2 which delivers through a pressure control valve 4 and a non-return valve 5, and the cylinder is maintained fully charged with the piston in its upper end position irrespective of a pressure rise in gas supply chambers 9 caused by increasing ambient temperature by pressure in a diaphragm type accumulator 7 in parallel with accumulator 8 and upstream of a pressure reducing valve 10 in the consumer line; the control valve 4 being so adjusted that the pressure in accumulator 7 is always greater than that of the gas chambers 9.
Patent GB-1182649-A (GB)
Title: Improvements relating to Olefin Polymerisation Catalysts and their use
IPC: C08F10/00
Filed: 1967-10-17
Abstract: 1,182,649. Organo-titanium compounds. IDEMITSU KOSAN CO. Ltd. 17 Oct., 1967 [17 Oct., 1966; 14 Feb., 1967; 31 March, 1967], No. 47300/67. Headings C2C and C2J. [Also in Division C3]  The invention comprises organo-titanium compounds of formula (R 2 T 1 (-OZO-)] 2 , where R is alkyl and Z is (CH 2 ) m  (m being 2, 3 or 4) or a derivative thereof in which one or more H atoms is replaced by an alkyl group. The compounds may be prepared by reacting a titanium dihalide X 2 T i (-OZO-) with RMgX or R 2 Mg, where R is alkyl and X is halogen. The titanium dihalides are made by treating a titanium tetrahalide with the diol HO-Z-OH or with a compound of formula Ti(-OZO-) 2 . Examples describe the preparation of butane-1,3- diol-titanium dichloride and 2-methylpentane- 2,4-diol-titanium dichloride and their conversion into the dimer of 2-methylpentane-2,4-dioltitanium-dimethyl and the dimer of butane-1,3- diol-titanium-dimethyl respectively. The organo-titanium compounds, when mixed with metal halides form olefin polymerization catalysts (see Division C3).